247029257307

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1\times {\mathrm{557159}}^1$

素因数の和:557703

約数の個数: 32

約数和(自身を含む): 385964789760

約数和(自身を除く): 138935532453

約数列:

[1, 3, 7, 21, 43, 129, 301, 491, 903, 1473, 3437, 10311, 21113, 63339, 147791, 443373, 557159, 1671477, 3900113, 11700339, 23957837, 71873511, 167704859, 273565069, 503114577, 820695207, 1914955483, 5744866449, 11763297967, 35289893901, 82343085769, 247029257307]

約数ペア:

[(1, 247029257307), (3, 82343085769), (7, 35289893901), (21, 11763297967), (43, 5744866449), (129, 1914955483), (301, 820695207), (491, 503114577), (903, 273565069), (1473, 167704859), (3437, 71873511), (10311, 23957837), (21113, 11700339), (63339, 3900113), (147791, 1671477), (443373, 557159)]